Output X-ray spectrum of the hot spot. Top panel: comparison between the X-ray spectra of the hot spot (thin lines) with the transmitted spectra (thick dashed lines; see Fig. 7). All the spectra are plotted on the same scale. The Fe feature in the backscattered spectrum at high accretion rates is strong. Bottom panel: X-ray spectra of the hot spot on a logarithmic scale. The e-beam properties are K = 800 keV and 2 × 10⁻³ L_⊙.